Remote connection to Windows 10 sometimes freezes
Solution 1:
Those are network errors. You are unlikely to solve it by looking at Windows logs. You will need to troubleshoot the network connection all along the full path. If this includes the open internet you are going to have links that you can't see or fix.
I recommend using Wireshark on both ends and filter the traffic so you only see the RDP tunnel. This will give you an idea of where the connection is lost. Then you can check your networking hardware for events near the timestamps of the trouble seen in wireshark.